Describe the way of life of sponges
Describe the way of life of sponges?
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Sponges live entirely in an aquatic environment and they are joined by their base to a substrate (that is, fixation ground). Sponges are filtering animals; they nourish themselves from nutrients which enter their atrium brought in by water.
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In high altitudes is it compulsory for the blood to contain less or more hemoglobin?
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